Design of Seven-core Photonic Crystal Fiber with Flat In-phase Mode for Yb: Fiber Laser Pumping

Ruijuan Dong, Peiguang Yan, Gelin Zhang, Huiquan Li, Shuangchen Ruan, Huifeng Wei, Jie Luo

Shenzhen key laboratory of laser engineering, Shenzhen University, College of Electronic Science and Technology,ShenZhen, China.
State Key Laboratory of Optical Fiber and Cable Manufacture Technology, Yangtze Optical Fiber and Cable Company Ltd. R&D center, Wuhan, China.

DOI: 10.4236/opj.2013.32B047                

Abstract

We numerically investigate the seven-core photonic crystal fiber (PCF) with the zero dispersion wavelength designed in the range of 1000 - 1080 nm, particularly suitable for the ytterbium-doped fiber laser pumping. Also, the PCFs are well designed for obtaining a flat in-phase mode by carefully adjusting the diameter of inner layer six holes, and the corresponding empirical values of fiber structure are summarized and listed. The variations of inner six holes to the amplitude of in-phase mode are further investigated, and our results show that a better tolerance can be achieved in the fiber structures with lower filling ratio configuration.

Keywords

Photonic Crystal Fiber (PCF); In-phase Mode (IPM); Supercontinuum Generation (SCG)

Conflicts of Interest

The authors declare no conflicts of interest.

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